[Amps] how much C in PS is too much?

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Sun, 21 Mar 2010 12:11:21 -0800, "Zeitler, Lane LT, FST-1"
<zeitlel at cpr3.navy.mil> wrote:

>at more or less
>1250uF total capacitance. Is this too much?.

REPLY:

From a good engineering point of view, you should use just enough
capacitance so that adding more makes no audible difference at the
receiving end. This is a subjective judgment of course, but for a
typical 3 kV, 850 mA supply, that is about 50 uF. Some commercial maps
(Command) use as little as 35 uF so the value is not really critical,
obviously. But I wouldn't stray too far from those values. 

73, Bill W6WRT